ATI TEAS 7
Biology
1. What is the scientific name for the kneecap?
- A. Patella
 - B. Femur
 - C. Tibia
 - D. Fibula
 
Correct answer: A
Rationale: The patella, commonly known as the kneecap, is a small, flat, triangular bone that sits at the front of the knee joint. It protects the joint from impact and helps to transmit force from the quadriceps muscle to the tibia (shinbone).
2. Which of the following colligative properties refers to the elevation of the boiling point of a solution?
- A. Freezing point depression
 - B. Vapor pressure lowering
 - C. Osmotic pressure
 - D. Boiling point elevation
 
Correct answer: A
Rationale: The correct answer is A: Freezing point depression. Colligative properties are properties that depend on the number of solute particles in a solution, not the type of solute. Freezing point depression is the phenomenon where the freezing point of a solvent is lowered when a solute is added, while boiling point elevation is the opposite effect where the boiling point of a solution is raised. Therefore, the question specifically asked for the colligative property that refers to the elevation of the boiling point, making "Freezing point depression" the correct answer.
3. Endotoxins are toxic substances released by:
- A. Viruses
 - B. Bacteria (gram-positive)
 - C. Bacteria (gram-negative)
 - D. Parasites
 
Correct answer: C
Rationale: Rationale: Endotoxins are toxic substances that are part of the outer membrane of the cell wall of gram-negative bacteria. These toxins are released when the bacteria are destroyed or during bacterial growth. Endotoxins can cause a variety of harmful effects in the host, including fever, inflammation, and septic shock. Viruses do not produce endotoxins, and gram-positive bacteria produce exotoxins rather than endotoxins. Parasites are not typically associated with the production of endotoxins.
4. Identify the noun clause in the sentence: "My biggest fear is that I wouldn't live life to the fullest."
- A. "My biggest fear"
 - B. "that I wouldn't live life to the fullest"
 - C. "life"
 - D. "the fullest"
 
Correct answer: B
Rationale: Option B functions as the object of the verb "is," making it a noun clause.
5. Which vitamin is essential for proper absorption of calcium and plays a role in lung function?
- A. Vitamin A
 - B. Vitamin B12
 - C. Vitamin D
 - D. Vitamin E
 
Correct answer: C
Rationale: The correct answer is C, Vitamin D. Vitamin D is essential for the proper absorption of calcium in the intestines, which is crucial for maintaining strong bones and teeth. Additionally, Vitamin D plays a role in lung function by supporting respiratory health and reducing inflammation in the lungs. Vitamin A is important for vision and immune function, Vitamin B12 is necessary for red blood cell formation and neurological function, and Vitamin E is an antioxidant that helps protect cells from damage.
6. Which vitamin deficiency can lead to kidney stones?
- A. Vitamin A
 - B. Vitamin B12
 - C. Vitamin D
 - D. Vitamin K
 
Correct answer: D
Rationale: The correct answer is D, Vitamin K. Vitamin K plays a role in blood clotting and bone health. A deficiency in Vitamin K can lead to an increased risk of kidney stones due to the improper regulation of calcium in the body. Calcium can accumulate in the kidneys and form stones if not properly managed. Vitamin K deficiency can disrupt the balance of calcium in the body, contributing to the development of kidney stones. Therefore, it is important to ensure an adequate intake of Vitamin K to prevent kidney stone formation.
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